[Code of Federal Regulations]
[Title 47, Volume 2]
[Revised as of October 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR24.232]

[Page 143-144]
 
                       TITLE 47--TELECOMMUNICATION
 
        CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED)
 
PART 24_PERSONAL COMMUNICATIONS SERVICES--Table of Contents
 
                         Subpart E_Broadband PCS
 
Sec.  24.232  Power and antenna height limits.

    (a) Base stations are limited to 1640 watts peak equivalent 
isotropically radiated power (EIRP) with an antenna height up to 300 
meters HAAT, except as described in paragraph (b) below. See Sec.  24.53 
for HAAT calculation method. Base station antenna heights may exceed 300 
meters with a corresponding reduction in power; see Table 1 of this 
section. The service area boundary limit and microwave protection 
criteria specified in Sec. Sec.  24.236 and 24.237 apply.

 Table 1--Reduced Power for Base Station Antenna Heights Over 300 Meters
------------------------------------------------------------------------
                                                               Maximum
                       HAAT in meters                         EIRP watts
------------------------------------------------------------------------
<= 300.....................................................         1640
<= 500.....................................................         1070
<= 1000....................................................          490
<= 1500....................................................          270
<= 2000....................................................          160
------------------------------------------------------------------------

    (b) Base stations that are located in counties with population 
densities of 100 persons or fewer per square mile, based upon the most 
recently available population statistics from the Bureau of the Census, 
are limited to 3280 watts peak equivalent isotropically radiated power 
(EIRP) with an antenna height up to 300 meters HAAT; See Sec.  24.53 for 
HAAT calculation method. Base station antenna heights may exceed 300 
meters with a corresponding reduction in power; see Table 2 of this 
section. The service area boundary limit and microwave protection 
criteria specified in Sec. Sec.  24.236 and 24.237 apply. Operation 
under this paragraph must be coordinated in advance with all PCS 
licensees within 120 kilometers (75 miles) of the base station and is 
limited to base stations located more than 120 kilometers (75 miles) 
from the Canadian border and more than 75 kilometers (45 miles) from the 
Mexican border.

 Table 2--Reduced Power for Base Station Antenna Heights Over 300 Meters
------------------------------------------------------------------------
                                                               Maximum
                       HAAT in meters                         EIRP watts
------------------------------------------------------------------------
<= 300.....................................................         3280
<= 500.....................................................         2140
<= 1000....................................................          980
<= 1500....................................................          540

[[Page 144]]


<= 2000....................................................          320
------------------------------------------------------------------------

    (c) Mobile/portable stations are limited to 2 watts EIRP peak power 
and the equipment must employ means to limit the power to the minimum 
necessary for successful communications.
    (d) Peak transmit power must be measured over any interval of 
continuous transmission using instrumentation calibrated in terms of an 
rms-equivalent voltage. The measurement results shall be properly 
adjusted for any instrument limitations, such as detector response 
times, limited resolution bandwidth capability when compared to the 
emission bandwidth, sensitivity, etc., so as to obtain a true peak 
measurement for the emission in question over the full bandwidth of the 
channel.

[70 FR 61059, Oct. 20, 2005]